Sometimes you can break tradition and still keep things traditional. Take souvlaki, for example. Skewered, bite-sized pieces of pork shoulder cooked on a grill and served on a pita with fresh tomatoes, onions, feta and tzatziki -- everything about the dish resonates traditional Greek cuisine. But you don't have to break out the grill -- or visit the Mediterranean -- every time you want to indulge in authentic-tasting souvlaki. Oven-roasting gets the pork to the same place the grill does -- tender and light, yet layered with flavor -- but without all the char and smoke.
Trim any loose, hanging fat from the pork shoulder with a kitchen knife. If the pork has the skin and a thick fat layer still attached to one side, as some market-form pork shoulders do, peel it away from the meat while slicing between the fat and meat with the kitchen knife. It should come off in one piece easily.
Cut the pork into 1-inch cubes and place them in a shallow dish.
Prepare a marinade. Traditional souvlaki marinades comprise olive oil, lemon juice, dried oregano and mint, salt, pepper and sometimes minced garlic and a Turkish bay leaf. You can make your own marinade using two parts olive oil to one part acid, such as lemon juice, as the base, and adding herbs and spices to taste.
Pour the marinade over the pork. Stir the pork cubes in the marinade to coat. Cover the dish with plastic wrap and place it on the bottom shelf of the refrigerator. Marinating raw meat on the bottom shelf of the refrigerator prevents it from cross-contaminating other foods should it get bumped or spilled.
Marinate the pork for three to four hours, stirring it after about two hours. Remove the pork from the fridge and let it reach room temperature.
Remove the pork cubes from the marinade and place them on a plate. Blot the cubes with a paper towel to absorb excess marinade if it contains a lot of salt or sugar. Marinades reduce when cooked, so if your marinade is salty, the souvlaki will taste even saltier. Sugar burns at oven-searing temperatures, so you should remove any excess, if applicable.
Heat the oven to 500 degrees Fahrenheit. Roasting pork at a high temperature for a few minutes, or oven-searing it, produces a caramelized exterior you can't get with low heat.
Transfer the pork from the plate to a shallow baking dish. Place the dish in the oven.
Oven-sear the pork at 500 F until it develops a golden-brown crust, or about five minutes. Lower the heat to 325 F.
Roast the souvlaki at 325 F for about 15 to 20 minutes, or until cooked through. Check the doneness by slicing a piece or two through the center and checking visually, or sliding four or five piece on the probe of a meat thermometer and checking the temperature. Fully cooked pork has no traces of pink inside and has an internal temperature of 145 F.